Another job you may not want to do; Making billiard balls

 

Making celluloid billiard balls at the Albany Billiard Ball Co. (late 19th C)

 Previously made from ivory,  celluloid was developed in the 1860s and was the material of choice for billiard balls till the 1980s when phenolics replaced it. I'm curious about that, bakelite were patented in 1909 and no one got around to trying the material for balls for 70 years?